Final answer:
The correct answer cannot be ascertained from the provided text as none of the activities mentioned (tending to the crops, cooking a meal, making pottery, writing a letter) align with the context of embroidery and needlework described.
Step-by-step explanation:
When Nathan observes Rukmani doing something he cannot do, he compliments her by saying, "It is well....You are clever, Ruku." In the context provided, there is no indication that Rukmani is engaged in the activities of tending to the crops, cooking a meal, or making pottery.
The correct answer cannot be ascertained from the provided text as none of the activities mentioned (tending to the crops, cooking a meal, making pottery, writing a letter) align with the context of embroidery and needlework described.
However, given the dialogue involving the admiration for embroidery work and the comparison with her ability to do needlework within a zenana (a term historically used in South Asia to refer to the part of a house belonging to women), it seems appropriate to infer that Rukmani's skills may align with such delicate and precise tasks.
Therefore, the answer to the question cannot be determined with certainty from the excerpt provided as none of the activities listed match.